Window-cleaner



S. YUASA.

WINDOW CLEANER.

APPLICATION FILED JAN. 15. 1921.

1 382,875 1. 7 Patented June 28, 1921.

Iii e296 or:

zyami UNITED STATES PATENT OFFICE.

SHIN'KICHI YUASA, 0F CUPERTINO, CALIFORNIA.

WINDOW-CLEANER.

Specification of Letters Patent.

Patented June 28, 1921.

Application filed January 15, 1921. Serial No. 437,488.

My invention while relating in general to window cleaners has reference more particularly to means for mechanically cleaning ac-' cumulations of snowysleet, rain and the like from the surface of Windshields o-rother windows so as to leave a clear vision through which the conductor of the vehicle may clearly observe the road and traflic.

The primary object of my invention is to provide means which. may be convenientlv manipulated from the drivers seat for quickly cleaning practically the entire surface of the windshield or window by a stroke of the wiping device.

' For the purpose of illustration I have shown my improved device in the accompanying drawing as applied to a windshield of a motor vehicle but the salient features of the same are in no waylimited to this particular adaptation as the advantages of the same may be fully realized in other instances,

- such as car windows or any other transparent look-outs which are subjected to the weather elements and must be kept clean to leave a clear vision;

In said drawing Figure 1 is a front elevation of a windshield for motor vehicles illustrating the application of the invention;

Fig. 2 isra horizontal section;

Fig. 3 is alsoa horizontal section on the line 3-3 Fig. 1

Fig. 4 is still another horizontal section on the line 4-4 Fig. 1;

Fig. 5 is a detail view of the bracket member; and

Fi 6 is a transverse section on the line 66 ig. 3. I v

Referring now to the drawing in detail as is customary, in motor vehicles of both the pleasure and commercial type, the windshieldis supported above the dash, outlined as at (A), and extends in close proximity to the top represented as at (B). The shield usually includes two divided sections (1) and (2) made of glass with the upper section overlapping the lower section thereof at the horizontal division line. are properly confined a suitable frame The two sections embodying in its construction a pair of uprights such as (3) and (4). Each of the sections are so confined'in the frame that they may be swung inwardly and outwardly independent of each other for ventilating or other purposes. However for protection against wind and wet weather, the sections assume substantially a perpendicular position as shown.

While there have been various samples of windshield cleaning devices most of'them have fallen short of providing a practical solution of the problems involved for instance, those which attempt-to clean the entire surface of the shield involve such a complicated arrangement of parts which.

make their use prohibited and those which are simple in construction "'do notwipe a 'suflicient area of the shield surface to leave an unobstructed vision from various angles.

The device which I have in mind while cleaning practically the entire windshield surface, is simple in construction and operation and does not look unsightly when applied. The device may be sold as an attachment andmay be easily applied and removed at will and it does not need to become a permanent part of the vehicle.

In its preferred form it com rises a pair of upright bracket members 5) and (6 which correspond to some extent to the uprights (3) and (4) of the windshield frame. These bracket members (5) and (6) ma be supported parallel to the frame mem ers (3) and (4) and fixed thereto by mounting clips (7 and (8) on their lower ends with the upper ends of the upri hts mounted in a frame member which includes journal bearings (9) and (10) forthe roller (11). The ends of this upper support extend outwardly from the windshield frame and the uprights (5) and (6) and terminate in down wardlty presented attachin (13) or the pintles (14) w ich are made to ears (12) and pass throu h the fixed end of thearms (15) and (16) or pivotinglthe arms to the ears. The opposite ends of t e arms (15) and (16 are pivoted to the wiper bar 17) which is arranged on the outside of the windshield and supported horizontally in contact with the shield surface so that the felted or the like part of the wipe! bar will bear. a ainst the shield surface. The arms (15) an (16) are secured to the wiper bar through a pin and slot connection made by providing a pair of relatively long slots (18) and (19) in the wiper bar with the pintles of each arm (15) and (16) confined free toroller (11) in practically the same manner as a curtain roller and the roller is supported in the journals (9) and (10) with freedom of rotation.

As a convenient means of manipulating the wiper bar downwardly across the surface of the windshield to clean the same, I propose to use a looped pull cord (23), the two ends of which being fastened to the outwardly presented extensions (24) of the collars (25) which slide on the rods (5) and (6) with the arms (26) connectin the collars with the wiper bar (17 The cord (23) is passed downwardly on the outside of the opposite ends of the windshield through the guides (27) then in back of the windshield where it extends horizontally in convenient position so that it may be grasped by the chauffeur. By, imparting a pull to the cord it will slide the dollars (25) downwardly on the rods (5) and (6) and thus pull the wiper bar (17) downwardly across 1 the surface of the shield and against the infiuence of the spring roller (11). The wiper bar is guided in its movement by the of the sprin arms (15) and (16) as best shown in dotted lines in. Fig. 1. -When the operator releases the pull on the cord, the influence (22) of the roller (11) will wind the cor s (21) upon the roller thus imparting an upward pull on the wiper bar returning it to normal or inactive position.

The construction, operation and advantages of the idea should'be fully understood from the above. It is to be understood that 1 do not limit myself to the particular construction shown and described as obviously certain detail changes may be made without departing from the spirit of the invention as covered in the subjoined claim.

In a device of the class described, a cleaning device includin a supporting frame adapted to be attached to a windshield frame of an automobile, a spring roller journaled in the top of the supporting frame, a wiper bar mounted free to be moved vertically up and down relatively to the supporting frame and in wiping contact with the windshield, a cord connecting the wiper bar with the spring roller with the cord wound upon the" roller under control of the spring thereof, a pull cord for moving the wiper bar downwardly over the windshield a ainst the infiuence of the spring in the ro ler, and arms pivoted to the top of the supporting frame and havinga pin and slot connection with the wiper bar for holding the wiper bar in contact with the windshield when the same is movedover the surface thereof. K

SHINKICHI YUASA. 

